gsd-2019-14861
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
All Samba versions 4.x.x before 4.9.17, 4.10.x before 4.10.11 and 4.11.x before 4.11.3 have an issue, where the (poorly named) dnsserver RPC pipe provides administrative facilities to modify DNS records and zones. Samba, when acting as an AD DC, stores DNS records in LDAP. In AD, the default permissions on the DNS partition allow creation of new records by authenticated users. This is used for example to allow machines to self-register in DNS. If a DNS record was created that case-insensitively matched the name of the zone, the ldb_qsort() and dns_name_compare() routines could be confused into reading memory prior to the list of DNS entries when responding to DnssrvEnumRecords() or DnssrvEnumRecords2() and so following invalid memory as a pointer.
Aliases
Aliases
CVE-2019-14861


To clipboard 

{
  "GSD": {
    "alias": "CVE-2019-14861",
    "description": "All Samba versions 4.x.x before 4.9.17, 4.10.x before 4.10.11 and 4.11.x before 4.11.3 have an issue, where the (poorly named) dnsserver RPC pipe provides administrative facilities to modify DNS records and zones. Samba, when acting as an AD DC, stores DNS records in LDAP. In AD, the default permissions on the DNS partition allow creation of new records by authenticated users. This is used for example to allow machines to self-register in DNS. If a DNS record was created that case-insensitively matched the name of the zone, the ldb_qsort() and dns_name_compare() routines could be confused into reading memory prior to the list of DNS entries when responding to DnssrvEnumRecords() or DnssrvEnumRecords2() and so following invalid memory as a pointer.",
    "id": "GSD-2019-14861",
    "references": [
      "https://www.suse.com/security/cve/CVE-2019-14861.html",
      "https://ubuntu.com/security/CVE-2019-14861",
      "https://advisories.mageia.org/CVE-2019-14861.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2019-14861"
      ],
      "details": "All Samba versions 4.x.x before 4.9.17, 4.10.x before 4.10.11 and 4.11.x before 4.11.3 have an issue, where the (poorly named) dnsserver RPC pipe provides administrative facilities to modify DNS records and zones. Samba, when acting as an AD DC, stores DNS records in LDAP. In AD, the default permissions on the DNS partition allow creation of new records by authenticated users. This is used for example to allow machines to self-register in DNS. If a DNS record was created that case-insensitively matched the name of the zone, the ldb_qsort() and dns_name_compare() routines could be confused into reading memory prior to the list of DNS entries when responding to DnssrvEnumRecords() or DnssrvEnumRecords2() and so following invalid memory as a pointer.",
      "id": "GSD-2019-14861",
      "modified": "2023-12-13T01:23:52.749440Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "secalert@redhat.com",
        "ID": "CVE-2019-14861",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "samba",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "all versions 4.11.x before 4.11.3"
                        },
                        {
                          "version_value": "all versions 4.10.x before 4.10.11"
                        },
                        {
                          "version_value": "all versions 4.x.x before 4.9.17"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Red Hat"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "All Samba versions 4.x.x before 4.9.17, 4.10.x before 4.10.11 and 4.11.x before 4.11.3 have an issue, where the (poorly named) dnsserver RPC pipe provides administrative facilities to modify DNS records and zones. Samba, when acting as an AD DC, stores DNS records in LDAP. In AD, the default permissions on the DNS partition allow creation of new records by authenticated users. This is used for example to allow machines to self-register in DNS. If a DNS record was created that case-insensitively matched the name of the zone, the ldb_qsort() and dns_name_compare() routines could be confused into reading memory prior to the list of DNS entries when responding to DnssrvEnumRecords() or DnssrvEnumRecords2() and so following invalid memory as a pointer."
          }
        ]
      },
      "impact": {
        "cvss": [
          [
            {
              "vectorString": "5.3/CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.0"
            }
          ]
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-276"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "USN-4217-1",
            "refsource": "UBUNTU",
            "url": "https://usn.ubuntu.com/4217-1/"
          },
          {
            "name": "USN-4217-2",
            "refsource": "UBUNTU",
            "url": "https://usn.ubuntu.com/4217-2/"
          },
          {
            "name": "FEDORA-2019-be98a08835",
            "refsource": "FEDORA",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PJH3ROOFYMOATD2UEPC47P5RPBDTY77E/"
          },
          {
            "name": "openSUSE-SU-2019:2700",
            "refsource": "SUSE",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00038.html"
          },
          {
            "name": "FEDORA-2019-11dddb785b",
            "refsource": "FEDORA",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WNKA4YIPV7AZR7KK3GW6L3HKGHSGJZFE/"
          },
          {
            "name": "GLSA-202003-52",
            "refsource": "GENTOO",
            "url": "https://security.gentoo.org/glsa/202003-52"
          },
          {
            "name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14861",
            "refsource": "CONFIRM",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14861"
          },
          {
            "name": "https://security.netapp.com/advisory/ntap-20191210-0002/",
            "refsource": "CONFIRM",
            "url": "https://security.netapp.com/advisory/ntap-20191210-0002/"
          },
          {
            "name": "https://www.samba.org/samba/security/CVE-2019-14861.html",
            "refsource": "CONFIRM",
            "url": "https://www.samba.org/samba/security/CVE-2019-14861.html"
          },
          {
            "name": "https://www.synology.com/security/advisory/Synology_SA_19_40",
            "refsource": "CONFIRM",
            "url": "https://www.synology.com/security/advisory/Synology_SA_19_40"
          },
          {
            "name": "[debian-lts-announce] 20210529 [SECURITY] [DLA 2668-1] samba security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00023.html"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "4.10.11",
                "versionStartIncluding": "4.10.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "4.11.3",
                "versionStartIncluding": "4.11.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "4.9.17",
                "versionStartIncluding": "4.0.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "secalert@redhat.com",
          "ID": "CVE-2019-14861"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "All Samba versions 4.x.x before 4.9.17, 4.10.x before 4.10.11 and 4.11.x before 4.11.3 have an issue, where the (poorly named) dnsserver RPC pipe provides administrative facilities to modify DNS records and zones. Samba, when acting as an AD DC, stores DNS records in LDAP. In AD, the default permissions on the DNS partition allow creation of new records by authenticated users. This is used for example to allow machines to self-register in DNS. If a DNS record was created that case-insensitively matched the name of the zone, the ldb_qsort() and dns_name_compare() routines could be confused into reading memory prior to the list of DNS entries when responding to DnssrvEnumRecords() or DnssrvEnumRecords2() and so following invalid memory as a pointer."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-276"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.samba.org/samba/security/CVE-2019-14861.html",
              "refsource": "CONFIRM",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://www.samba.org/samba/security/CVE-2019-14861.html"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20191210-0002/",
              "refsource": "CONFIRM",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://security.netapp.com/advisory/ntap-20191210-0002/"
            },
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14861",
              "refsource": "CONFIRM",
              "tags": [
                "Issue Tracking",
                "Third Party Advisory"
              ],
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14861"
            },
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            },
            {
              "name": "https://www.synology.com/security/advisory/Synology_SA_19_40",
              "refsource": "CONFIRM",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://www.synology.com/security/advisory/Synology_SA_19_40"
            },
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              "refsource": "SUSE",
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              "url": "http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00038.html"
            },
            {
              "name": "FEDORA-2019-11dddb785b",
              "refsource": "FEDORA",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WNKA4YIPV7AZR7KK3GW6L3HKGHSGJZFE/"
            },
            {
              "name": "GLSA-202003-52",
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              "tags": [
                "Third Party Advisory"
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            },
            {
              "name": "[debian-lts-announce] 20210529 [SECURITY] [DLA 2668-1] samba security update",
              "refsource": "MLIST",
              "tags": [
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                "Third Party Advisory"
              ],
              "url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00023.html"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 3.5,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:M/Au:S/C:N/I:N/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 6.8,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "LOW",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 1.6,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2023-01-30T19:56Z",
      "publishedDate": "2019-12-10T23:15Z"
    }
  }
}


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